August weather forecast
Dellwood, TN

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Weather in August

The last month of the summer, August, is also a hot month in Dellwood, Tennessee, with an average temperature ranging between min 64.4°F (18°C) and max 86.7°F (30.4°C).

Temperature

As August takes hold, the average high-temperature is a still tropical 86.7°F (30.4°C), nearly mirroring that of the previous month. In August, the temperature registers a significant dip to an average of 64.4°F (18°C) at night.

Heat index

In August, the heat index is estimated at a very hot 98.6°F (37°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

With an average relative humidity of 72%, August is the least humid month.

Rainfall

In Dellwood, during August, the rain falls for 14.4 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 148.2 rainfall days, and 18.23" (463mm) of precipitation is accumulated.

Snowfall

In Dellwood, Tennessee, snow does not fall in April through September.

Daylight

In Dellwood, the average length of the day in August is 13h and 28min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:39 pm. On the last day of August, in Dellwood, Tennessee, sunrise is at 7:07 am and sunset at 8:04 pm EDT.

Sunshine

In Dellwood, Tennessee, the average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Dellwood. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Dellwood during August?

During August, Dellwood experiences an average high-temperature of 86.7°F (30.4°C) and a low-temperature of 64.4°F (18°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 98.6°F (37°C).

What is the least humid month in Dellwood?

August is the least humid month in Dellwood, Tennessee, with an average relative humidity of 72%.

What is the average humidity in August in Dellwood?

In Dellwood, Tennessee, the average relative humidity in August is 72%.

How many days does it rain in August in Dellwood?

In August, the rain falls for 14.4 days. Throughout August, 1.42" (36mm) of precipitation is accumulated.

When it does not snow in Dellwood?

In Dellwood, snow does not fall in April through September.

How many hours of daylight does Dellwood have in August?

The average day length in August is 13h and 28min.

When are sunrise and sunset in August in Dellwood?

On the first day of August, sunrise is at 6:44 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:04 pm EDT.

How long on average sun shines in August in Dellwood?

In Dellwood, Tennessee, the average sunshine duration in August is 10.1h.

What is the month with the highest UV index in Dellwood?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Dellwood, Tennessee.

What is the UV index intensity in August in Dellwood?

In August, the average daily maximum UV index in Dellwood is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Dellwood, TN

Average temperature in August - Dellwood, TN
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in August: 64.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in August
Dellwood, TN

Average pressure in August - Dellwood, TN
  • Average pressure in August: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in August
Dellwood, TN

Average wind speed in August - Dellwood, TN
  • Average wind speed in August: 3.6mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in August
Dellwood, TN

Average humidity in August - Dellwood, TN
  • Average humidity in August: 72%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in August
Dellwood, TN

Average rainfall in August - Dellwood, TN
  • Average rainfall in August: 1.42"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in August
Dellwood, TN

Average rainfall days in August - Dellwood, TN
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in August
Dellwood, TN

Average snowfall in August - Dellwood, TN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in August
Dellwood, TN

Average snowfall days in August - Dellwood, TN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Dellwood, TN

Average daylight in August / Average sunshine in August - Dellwood, TN
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in August
Dellwood, TN

Average sunshine days in August - Dellwood, TN
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).

Average UV index in August
Dellwood, TN

Average UV index in August - Dellwood, TN
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in August
Dellwood, TN

Average cloud cover in August - Dellwood, TN
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in August
Dellwood, TN

Average visibility in August - Dellwood, TN
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

Dellwood, Tennessee, USA

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